Hardware Description
8
specially for each master. This allows concurrent access of masters to their slaves
(provided the slave is available).
The bus matrix is thus the bridge between external devices connected to the EBI, the
microcontroller's embedded peripherals and the CPU core.
Master 0
ARM926
™
Instruction
Master 1
ARM926
™
Data
Master 2
PDC
Master 3
LCD Controller
Master 4
USB Host DMA
Table 4.1. Bus Matrix Masters
Slave 0
Internal SRAM 160KB
Slave 1
Internal ROM
Slave 2
LCD Controller / USB Host User Interface
Slave 3
External Bus Interface (EBI)
Slave 4
Internal Peripherals
Table 4.2. Bus Matrix Masters
4.5. Advanced Interrupt Controller (AIC)
The Advanced Interrupt Controller can handle up to 32 internal or external interrupt
sources. The AIC integrates an 8-level priority controller. Interrupt sources can be
programmed to be level sensitive or edge triggered. The polarity can be programmed for
all external interrupt sources.
Moreover, all PIO lines can be used to generate a PIO interrupt. However, the PIO lines
can only generate level change interrupts, that is, positive as well as negative edges will
generate an interrupt. The PIO interrupt itself (PIO to AIC line) is usually programmed to
be level-sensitive. Otherwise interrupts will be lost if multiple PIO lines source an interrupt
simultaneously.
On the Panel-Card IRQ0, IRQ1 and IRQ2 are available. The list of peripheral identifiers
which are used to program the AIC can be found in Table B.1, “Peripheral Identifiers”.
4.6. Battery Backup
The following parts of the AT91SAM9261 Processor can be backed-up by a battery:
• Slow Clock Oscillator
• Real Time Timer
• Reset Controller
• Shutdown Controller
Summary of Contents for Panel-Card
Page 1: ...Panel Card Technical Reference ...
Page 32: ...Panel Card Starterkit 26 Figure 6 1 Panel Card EVB Schematics Bus JTAG ...
Page 33: ...Panel Card Starterkit 27 Figure 6 2 Panel Card EVB Schematics USB RS232 ...
Page 34: ...Panel Card Starterkit 28 Figure 6 3 Panel Card EVB Schematics Power Regulation ...
Page 35: ...Panel Card Starterkit 29 Figure 6 4 Panel Card EVB Schematics Connectors ...
Page 36: ...Panel Card Starterkit 30 Figure 6 5 Panel Card EVB Schematics HID ...
Page 39: ...Panel Card Starterkit 33 Figure 6 8 Panel Card Connector Schematics USB Ethernet ...
Page 49: ...Panel Card Dimensions 43 Appendix H Panel Card Dimensions Figure H 1 Panel Card 35 Dimensions ...
Page 50: ...Panel Card Dimensions 44 Figure H 2 Panel Card 57 Dimensions ...